nix/module/common/tmux/default.nix

269 lines
7.9 KiB
Nix

{ style, key, util, setting, ... }: let
mod = key.tmux.mod;
accent = style.color.accent;
bg = style.color.bg.dark;
fg = style.color.fg.light;
in {
config = util.trimTabs ''
# Remap <C-b> to <C-t>.
unbind-key C-b
set-option -g prefix C-t
bind-key C-${key.tmux.prefix} send-prefix
# Disable escape delay.
set -sg escape-time 0
# Reload config.
bind -n ${mod}-${key.tmux.reload} source-file /etc/tmux.conf
# Scroll.
bind -n ${mod}-${key.tmux.scroll.up} copy-mode -u
bind -n ${mod}-${key.tmux.scroll.down} send-keys Pagedown
# Copy mode.
setw -g mode-keys vi
bind -n ${mod}-${key.tmux.copy.select} copy-mode
bind -n ${mod}-${key.tmux.copy.paste} choose-buffer;
bind -T copy-mode-vi ${key.tmux.copy.select} send -X begin-selection
bind -T copy-mode-vi ${key.tmux.copy.copy} send-keys -X copy-pipe-and-cancel "pbcopy"
# Remap split keys.
bind -n ${mod}-${key.action.split.vertical} split-window -h -c "#{pane_current_path}"
bind -n ${mod}-${key.action.split.horizontal} split-window -v -c "#{pane_current_path}"
bind -n ${mod}-${key.action.resize.equalize} select-layout tiled
bind -n ${mod}-${key.action.resize.up} resize-pane -U ${setting.tmux.resize.step.vertical}
bind -n ${mod}-${key.action.resize.down} resize-pane -D ${setting.tmux.resize.step.vertical}
bind -n ${mod}-${key.action.resize.left} resize-pane -L ${setting.tmux.resize.step.horizontal}
bind -n ${mod}-${key.action.resize.right} resize-pane -R ${setting.tmux.resize.step.horizontal}
bind -n ${mod}-${key.navigation.move.left} swap-pane -U
bind -n ${mod}-${key.navigation.move.right} swap-pane -D
unbind '"'
unbind %
# Swith panes.
bind -n ${mod}-${key.navigation.go.left} select-pane -L
bind -n ${mod}-${key.navigation.go.right} select-pane -R
bind -n ${mod}-${key.navigation.go.up} select-pane -U
bind -n ${mod}-${key.navigation.go.down} select-pane -D
# Close pane.
bind -n ${mod}-${key.action.hide} kill-pane
bind -n ${mod}-${key.action.seek} kill-pane -a
# Detach.
bind -n ${mod}-${key.action.wait} detach-client
bind -n ${mod}-${key.action.exit} detach-client -a
# Switch sessions.
bind -n ${mod}-${key.tmux.session.prev} switch-client -p
bind -n ${mod}-${key.tmux.session.next} switch-client -n
bind -n ${mod}-${key.tmux.session.choose} choose-session
# Resize to smallest client.
set -g window-size smallest
# Selection style.
set -g mode-style "fg=#${bg} bg=#${accent} bold"
# Pane style.
set -g pane-border-style "fg=#${bg}"
set -g pane-active-border-style "fg=#${bg}"
# Statusbar.
bind-key -n ${mod}-${key.tmux.status.toggle} set-option -g status;
bind-key -n ${mod}-${key.tmux.status.uber} run-shell 'tmux_script togglestatusbar'
set -g status-interval ${setting.tmux.status.interval}
set -g status-position bottom
set -g status-justify left
set -g status-style "fg=#${fg}"
set -g status-left "#[bold] #H-#S #(tmux_script client_count #S)"
set -g status-left-length ${setting.tmux.status.length}
set -g status-right-length ${setting.tmux.status.length}
set -g status-right "#(tmux_script statusbar) %d %a #[bold] %H:%M "
set-window-option -g window-status-separator ""
setw -g window-status-current-style "fg=#${accent} bold"
setw -g window-status-current-format " #W "
setw -g window-status-style ""
setw -g window-status-format " #W "
set-window-option -g visual-bell off
setw -g window-status-bell-style "bold blink"
# Create new window.
bind -n ${mod}-${key.tmux.window.new} new-window -c "#{pane_current_path}"
bind -n ${mod}-${key.tmux.window.new_compat} new-window -c "#{pane_current_path}"
# Close window.
bind -n ${mod}-${key.action.close} kill-window
bind -n ${mod}-${key.action.kill} kill-window -a
# Switch window.
bind -n ${mod}-${key.navigation.go.next} next-window
bind -n ${mod}-${key.navigation.go.prev} previous-window
# Move window.
bind -n ${mod}-${key.navigation.move.next} swap-window -t +1\; select-window -t +1
bind -n ${mod}-${key.navigation.move.prev} swap-window -t -1\; select-window -t -1
# Env.
set-option -g default-terminal "tmux-256color"
set-option -g focus-events on
set-option -sa terminal-features "RGB"
set-option -g update-environment "SSH_CLIENT SSH_TTY DOCKER_CONFIG DOCKER_HOST DISPLAY XAUTHORITY BASH_PATH SWAY_SOCK"
'';
script = ''
#!/usr/bin/env bash
function _tmux_battery() {
local IFS=$'\n'
local batteries=($(ls /sys/class/power_supply/ | grep ^BAT[0-9]$))
[[ "''${batteries}" = "" ]] && return 1
local battery="/sys/class/power_supply/''${batteries[0]}"
local level=$(cat ''${battery}/capacity)
local status=$(cat ''${battery}/status)
local is_charging=false
[[ "''${status}" = "Charging" ]] && is_charging=true
local icon
if ((level>=${setting.tmux.status.battery.threshold.high}))
then
icon="󱊣"
elif ((level>=${setting.tmux.status.battery.threshold.medium}))
then
icon="󱊢"
elif ((level>=${setting.tmux.status.battery.threshold.low}))
then
icon="󱊡"
else
icon="󰂎"
fi
echo -n "''${icon}"
''${is_charging} && echo -n "󱐋"
echo
echo -n "''${level}"
}
function _tmux_volume() {
local IFS=$'\n'
local level=$(wpctl get-volume @DEFAULT_SINK@ | cut -d\ -f2 | sed -e "s/^0//" -e "s/\.//")
[[ "''${level}" = "" ]] && return 1
[[ "''${level}" = "00" ]] && level="0"
local icon
if ((level>=${setting.tmux.status.volume.threshold.high}))
then
icon="󰕾"
elif ((level>=${setting.tmux.status.volume.threshold.medium}))
then
icon="󰖀"
elif ((level>=${setting.tmux.status.volume.threshold.low}))
then
icon=""
else
icon="󰝟"
fi
local muted=$(wpctl get-volume @DEFAULT_SINK@ | grep '[MUTED]')
if [[ "''${muted}" != "" ]]; then
icon="󰸈"
fi
echo "''${icon}"
echo -n "''${level}"
}
function _tmux_statusbar() {
local IFS=$'\n'
local sep=""
local thr_volume=${setting.tmux.status.volume.threshold.show}
local thr_battery=${setting.tmux.status.battery.threshold.show}
local is_uber=$(cat "/tmp/.tmux_uber" || echo -n false)
# Get data.
battery=($(_tmux_battery))
volume=($(_tmux_volume))
# Prepare separators.
sep_batvol=" "
if ''${is_uber} || [[ "''${battery[1]}" -lt "''${thr_battery}" ]] || [[ "''${volume[1]}" -gt "''${thr_volume}" ]]; then
sep_batvol=" ''${sep} "
fi
if [[ "''${battery[0]}" = "" ]]; then
sep_batvol=""
fi
# Print.
echo -n " "
# Assemble.
if ''${is_uber}; then
local lang=($(_tmux_language))
[[ "''${lang[0]}" != "" ]] && {
echo -n "''${lang[0]} ''${sep} "
};
[[ "''${volume[0]}" != "" ]] && echo -n "''${volume[0]} ''${volume[1]}%''${sep_batvol}"
[[ "''${battery[0]}" != "" ]] && echo -n "''${battery[0]} ''${battery[1]}%"
else
[[ "''${volume[0]}" != "" ]] && {
echo -n "''${volume[0]}"
[[ "''${volume[1]}" -gt 100 ]] && echo -n " ''${volume[1]}%"
echo -n "''${sep_batvol}"
};
[[ "''${battery[0]}" != "" ]] && {
echo -n "''${battery[0]}"
[[ "''${battery[1]}" -lt 40 ]] && echo -n " ''${battery[1]}%"
};
fi
echo -n " "
}
function _tmux_language() {
local IFS=$'\n'
local lang=$(swaymsg -t get_inputs | jq 'map(select(has("xkb_active_layout_name")))[0].xkb_active_layout_name')
echo -n ''${lang:1:2}
}
function _tmux_client_count() {
local IFS=$'\n'
local session=''${1}
local count=$(tmux list-clients -t ''${session} | wc -l)
[ ''${count} -gt 1 ] && echo -n "+''${count} "
}
function _tmux_toggle_statusbar() {
local file="/tmp/.tmux_uber"
if [[ ! -f ''${file} ]]; then
echo "true" > ''${file}
elif $(cat ''${file}); then
echo "false" > ''${file}
else
echo "true" > ''${file}
fi
}
IFS=$'\n'
action=''${1}
session=''${2}
case "''${action}" in
"statusbar") _tmux_statusbar ;;
"client_count") _tmux_client_count ''${session} ;;
"togglestatusbar") _tmux_toggle_statusbar ;;
esac
'';
}